Traction attachment for automobiles.



G. L. PARISH & P. G. PERRBLL.

TRACTION ATTACHMENT FOR AUTOMOBILES. I APPLICATION FILED JUNE 16, NH.

1,108,221. Patented Aug. 25, 1914.

Z SHEETS-SHEET 1.

YHE AORRIS PETERS CO., PHDTO-LITHO.. WASHINGTON. D. L.

C. L. PARISH & P. G. FERRELL.

TRACTION ATTACHMENT FOR AUTOMOBILES.

APPLICATION PILED JUNE 16, 1913. 1,1 08,221 Patented- Aug. 25, 1914 2SKEETSSHBET 2.

THE NORRIS PETERS C0 PHOTO'LITHO 4 WASHINGTON. n. C

' To all whom it may concern:

UNIT D STATES PATENT OFFICE. I

CHEANEY L. PARISH AND FRED o. FERRELL, or HARRISBURG, ILLINOIS.

TRACTION ATTACHMENT FOR AUTOMOBILES.

Specification of Letters Patent.

Patented Au 25, 1914.

Application filed June 16, 1913. Serial N 0. 774,023.

.Be it known that we, CHEANEY L. PARIsH and FRED C. FERRELL, citizens ofthe United States,,residing at Harrisburg, in the county of Salina andState'of Illinois, have invented .certain new. and useful Improvementsin Traction Attachments for. Automobiles; and we do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it ap'per tainsto make and use the same. y 1

This invention relates tO'IlGW and useful improvements in automobileattachments, and has particular reference to that type of suchdevicesbroadlyknown as traction attachments designed especially forthepurpose of affording a gripping surfaceto the is stalled in a muddyroad.

As its principal'object this invention contemplates the provision of adevice of the character aboveset forth, which consists essentially in arackbar,

therealong, and means for attaching the pinion to the hub and spokes ofone of the so that the rack rear wheels of an automobile, so that therotation of the wheel will effect the movement of the pinion along-therack bar. I A further object'of this invention is to provide simple andefficient means for attaching thepinion in fixed relation to one of therear-wheels of-an automobile, so that it may be quickl applied and asreadily disconnected. j A still further object is to provide anelongated casing or housing for the rack bar, bar may-:be drawn outalmost entirely from the housing and secured in this position by boltsor other suitable fastening means so that the operative length of thedevice isincreased twofold.

The above and additional objects are accomplished by such 'meansas areillustrated in the accompanying drawings, described in ment of ourinvention as it is reduced to practice, andthroughout the several viewsin a pinion" movable of the rear terminal road bed, there has bar, areappended hereto and form a part of this to the drawings, whereintivelyconnected we have illustrated the preferred embodiof which similarreference numerals designate corresponding partsi Figure 1 isa sideelevation illustrating the traction device of this invention inassembled relation to one rear wheel ofv an automobile; Fig. 2 isadetail view illustrating the manner n which the spoke .hooks areapplied; Fig. 3'is a side elevation; Fig. 4 is a section on line H ofFig. 3; Fig. 5 is a section on line 5,5 of Fig. 3; Fig. 6 is alongitudinal section illustrating themanner is secured in fixed relationto the housing or casing when in extended position; Fig. 7 is a detailof the hook plate in disassembled position; Fig. 8 is terminal of thecasing,

respectively, the rack bar and. housing em ployed in connectiontherewith. When not use, the rack bar is normally disposed within thecasing 2,: which substantially square in. cross section and. is formedof When-in extended p0--- hollow sheet metal. sition, the rack bar is,asillustrated in detail in Fig. .6, retained in fixed relation to thecasing 2 by means of bolts 3, or other suitable fastemng devices whichare passed .through registering. apertures 1n the casing and innerterminal of the rack bar. In order to effect a secure grippingengagement of thecasing 2 with the been provided a downwardly bentextension plate 4, which is bifurcated'atits lower terminal to produceforks, as at 5 and 6. These forks are adapted to be embedded in theground and are held against abnormal projection into the road bed by aplate 7 which may be formed integrally-with the member 4, or securedthereto in any found most desirable. I 1

As a means for operatively connecting the rear wheel ofthe automobile totherack so that when the rear wheel rotates it move alongthe" member 1,th employs .a pinion 8, which is operato the wheel of the automobile bya squared shaft- 9, on which the pinion is keyed. The pinion 8 isjournaled in apex portions of aypair of substantially V;

will tion in which the. rack bar a detail view of the rear, illustratingthe means employed in effecting a grippingengagement of the casing withthe road bed. wheels of an automobile when the machine esired manner asmay be.

is invenshaped plates 10 and 11, which are arranged to engage theopposite sides of the rack bar and are provided at their lower terminalswith a pair of rollers 12 and 13, the function of which will be obviousupon reference to Fig. 5. I The upper portion of the plate 11 is hingedto the lower portion, as at 14, to facilitate the assembling of theparts. When applied to the rack bar, the plates 10 and 11 engage theopposite sides of the bar, the rollers 12 and 13 bear against the lowerface of the bar, and the pinion 8 meshes with the teeth on the upperface of the bar.

At the terminal of the squared shaft 9 is secured a hub cup 15, which,when the device is in use, is applied to the hub of the rear wheel andis designed to prevent the shifting of the shaft 9, and consequentshifting of a hookplate 16, which is centrallyprovided with a squaredopening and is slidably mounted on the shaft 9 between the cup 15 andthe plate 10. This hook plate 16 is substantially square in thepreferred embodiment and is provided at each corner with a notch, as at17. In each notch of the hook plate is pivotally secured one of ninetydegrees,

terminal of a spoke "hook 18. These spoke hooks are preferably four innumber and are similar in their construction, each being formed of alengt of strap metal twisted adjacent its outer terminal through an arcand subsequently bent to, produce a terminal hook, as at 19. When thehookslare applied to the spokes of the wheel, the hub cup 15 is firstpressed against the hub of the wheel and the plate 16 is then moved onthe shaft 9 to bring the hooks into the proper relation to the spokes.

From the foregoing the operation of the device will be readily apparent.

When the driver of the machine is stalled in a muddy road and is unableto proceed because of the slipping of the rear wheel, the rack bar 1 isdrawn out of the casing 2 and is secured in fixed relation thereto bythe bolts 8, as previously described. The pinion 8 and associated partsare then placed on the rack bar and disposed at the bolted terminalthereof. The hub cup 15 and spoke hoops 18 are next applied to the wheelin the manner above described and the en gine is started. It will beapparent that the rotation of the wheel of the automobile will rotatethe pinion 8 in the direction of the forward end of the rack bar and,conse quently, the pinion Swill move along the rack bar, thus affordinga gripping surface 1 have found .gitudinally of said rack bar, platesmounted for sliding movement along the sides of said rack bar, journaledin the upper portion of said plates,

the rear wheel of an illustrated including a rack bar,

ing that the conditions concurrent with the adoption of our device willnecessarily vary, we desire to emphasize the fact that various minorchanges in details of construction, proportion and arrangement of partsmay be resorted to, when required, without sacrificing any of theadvantages of our invention, as defined in the appended claims.

. What is claimed is:

1. A traction attachment for automobiles including a rack bar, a housingfor said rack bar, means for holding said rack bar in extended relationto said housing, a pinion movable on said rack bar, and means foroperatively and detachably connecting said pinion to the rear wheel ofan automobile.

2. A traction attachment for automobiles including a rack bar, a housingfor said rack bar, means for holding said rack bar in extended relationto said housing, a pinion movable longitudinally of said rack bar, asquared shaft for said pinion, a hook plate splined on said shaft, aplurality of hook members pivotally attached to said hook plate, saidhook members being adapted for attachment to the spokesof the rear wheelof an automobile, and a hub cup carried ter- .minally of said shaft "andadapted for engagement with the hub of the wheel when the said hooks arein operative relation to the wheel.

3. A. traction attachment for automobiles including a rack bar, ahousing for said rack bar, said rack bar being slidably mounted in saidhousing, means for holding said rack bar in extended relationto saidhousing, a bifurcated road engaging member carried by said housing, apinion movable and means longitudinally of said rack bar,

1 for operatively connecting said pinion to the rear wheel of anautomob 1. An automobile eluding a rack bar,

traction attachment ina pinion movable lon a pair of side said pinionbeing rollers carried bysaid plates and disposed to engage the underface of said rack bar, and means for detachably connecting the saidpinion to the rear wheel of an automobile.

5. A traction attachment for automobiles including a rack bar, a movablepinion on said rack bar, and means for operatively and detachablyconnecting said pinion to automobile.

6. A traction attachment for automobiles including a rack bar, a pinionmovable on said rack bar, and means for operatively connecting saidpinion to the rear wheel of an automobile.

7. A traction attachment for automobiles apinion movable on the rackbar, a bifurcated road engaging rack bar and operatively connected withthe 10 member operatively connected with the rack rear Wheel of anautomobile.

bar, and means for detachably and oper- In testimony whereof we affixour signaatively connecting said pinion to the rear tures in presence oftwo witnesses.

wheel of an automobile. OHEANEY L. PARISH.

8. A traction attachment for automobiles FRED C. FERRELL. includingsnack bar, means for detachably Witnesses: connecting the rack bar withthe rear wheel MA'ITY E. PARKEY, of an automobile, and means movable onthe VICTORERS H. ARNOLD.

M Copies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents.

' Washington, D. G.

